Stephan Paula, Veugelers Reinhilde, Wang Jian
Georgia State University, Atlanta, Georgia, USA.
Department of Managerial Economics, Strategy and Innovation (MSI) and Center for R&D Monitoring (ECOOM), University of Leuven (KU Leuven), Belgium.
Nature. 2017 Apr 26;544(7651):411-412. doi: 10.1038/544411a.